'Pretty Little Liars' Halloween Special: 'This is a Dark Ride'

PRETTY LITTLE LIARS - "This Is a Dark Ride" - Aria, Emily, Hanna and Spencer are looking forward to some good old Halloween fun now that the traumatic events with Nate are behind them. But once aboard the Rosewood Ghost Train, the girls are in for much more than just some childish trick or treats. With "A" running amuck and unexpected party-goers popping up at every turn, this Halloween event becomes one killer party, in "This Is a Dark Ride," a special Halloween-themed episode of ABC Family's hit original series "Pretty Little Liars," airing Tuesday, October 23rd (8:00 - 9:00 PM ET/PT), as part of ABC Family's "13 Nights of Halloween" programming event